A recent stat in the UK showed the vast majority of 16-24 year olds consider religion more a force for evil. Also, let's have a look at the rise of non belief in US, UK, France, Germany, Denmark, Switzerland, China, Japan, so yay it's coming from the east and the west. I have this image of it slowly creeping in from both sides until Saudi a cleric looks around and suddenly realises he's in a secular country.
Thats true but this has pretty much been the trend in Europe, East Asia and North America for the last few decades. Most young White Brits are non-religious, but at the same time the vast majority of young British Muslims are getting even more religious, or so thats what it seems like from experience. Growing up in East London, 99% of my friends were devout, or at least semi-religious muslims (and still are)...and I don't see that changing anytime soon.